Gabriel Jesus received a standing ovation from the Arsenal away fans when he was substituted on for Trossard.
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The Brazilian had been out with an injury since December, and many thought Arsenal would crumble without their talisman.
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However, Arteta’s team performed well in his absence.
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At the time of his injury, Arsenal were 5 points ahead of Manchester City. And with his return, Arsenal still maintains a five points gap over Manchester City.